磁致伸缩贴片换能器除冰的仿真模拟与实验研究  

Simulation and experimental study on deicing of magnetostrictive patch transducer

作　　者：贾士聪 李明明[1,2] 王千 翁玲[1,2] 黄文美[1,2] JIA Shicong;LI Mingming;WANG Qian;WENG Ling;HUANG Wenmei(State Key Laboratory for Reliability and Intelligentization of Electrical Equipment Jointly Constructed by the Ministry and the Province,Hebei University of Technology,Tianjin 300130,China;Key Laboratory of Electromagnetic Field and Electrical Apparatus Reliability of Hebei Province,Hebei University of Technology,Tianjin 300130,China)

机构地区：[1]河北工业大学省部共建电工装备可靠性与智能化国家重点实验室,天津300130 [2]河北工业大学河北省电磁场与电气可靠性重点实验室,天津300130

出　　处：《传感器与微系统》2024年第12期62-65,共4页Transducer and Microsystem Technologies

基　　金：国家自然科学基金资助项目(51801053,51777053,52077052);河北省自然科学基金资助项目(E2019202315,E2022202067);河北省中央引导地方科技发展基金资助项目(226Z1704G)。

摘　　要：本文提出了一种基于Fe-Co磁致伸缩材料贴片换能器激发SH_(0)波产生界面剪应力的除冰方法,SH_(0)是一种非频散的导波模态,在导波能量传递上具有衰减小的优势。换能器结构采用了互相垂直的偏置磁场与交变激励磁场,通过有限元方法对试验覆冰铝板进行仿真分析,得出换能器在16 kHz的激励频率下产生最大界面剪应力,激励电流为2 A时,剪应力达到0.7 MPa,超过了除冰所需要的0.4 MPa标准。在-15℃的冰箱中对200 mm×200 mm×1 mm的覆冰铝板进行了除冰实验测试,激励电流为2 A时,除冰工作在1 min左右完成,除冰功耗仅为0.46 W/cm^(2)。设计的磁致伸缩贴片换能器可为小体积、低功耗的超声除冰技术发展提供支持。A deicing method based on the excitation of SH_(0) waves by Fe-Co magnetostrictive material patch transducers to generate interfacial shear stress is proposed.SH_(0) is a non dispersive guided wave mode,which has the advantage of small attenuation in guided wave energy transfer.The transducer structure uses a mutually perpendicular bias magnetic field and an alternating excitation magnetic field.The finite element method is used to simulate and analyze the experimental iced aluminum plate,and it is found that the transducer produces the maximum interfacial shear stress at an excitation frequency of 16 kHz.When the excitation current is 2 A,the shear stress reaches 0.7 MPa,exceeding the standard of 0.4 MPa required for deicing.A deicing experimental test is conducted on a 200 mm×200 mm×1 mm iced aluminum plate in a refrigerator at -15℃.When the excitation current is 2 A,the deicing operation is completed in about 1min,and the deicing power consumption is only 0.46 W/cm^(2).The designed magnetostrictive patch transducer can provide support for the development of small volume and low power consumption ultrasonic deicing technology.

关 键 词：超声除冰 磁致伸缩贴片换能器 SH波 界面剪应力 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置] TN712.2[自动化与计算机技术—控制科学与工程]